Pet litter tray



FIG. 1 is a top perspective view of our new pet litter tray showing our new design;

FIG. 2 is an end view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a plan view;

FIG. 5 is a bottom view; and

FIG. 6 is a fragmentary sectional view taken on the line 6--6 of FIG. 4. 

The ornamental design for a pet litter tray, as shown and described. 